usb: gadget: add 'quirk_stall_not_supp' to usb_gadget

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Due to some UDC controllers may not support stalling, usb gadget layer
needs to provide a generic way to inform gadget functions about non-standard
hardware limitations.

This patch adds 'quirk_stall_not_supp' field to struct usb_gadget and helper
function gadget_is_stall_supported(). It also sets 'quirk_stall_not_supp'
to 1 in at91_udc driver, which has such limitation.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

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Robert Baldyga 2015-07-28 07:19:59 +02:00 • committed by Felipe Balbi

parent ffd9a0fcbb

commit 02ded1b0d8

2 changed files with 11 additions and 0 deletions

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1

drivers/usb/gadget/udc/at91_udc.c

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10

include/linux/usb/gadget.h

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